Patent · US Active

Method and apparatus for controlling diaphragm displacement in synthetic jet actuators

US8290724B2 · kind B2 · utility

6Cited by

4References

26Claims

0Family size

Assignee

Nuventix, Inc. · US

Inventors

Stephen P. Darbin · Austin, US
Markus Schwickert · San Jose, US
John Stanley Booth · Austin, US
Robert Reichenbach · Portland, US
Rick Ball · Austin, US
Steve Farrell · Austin, US
Daniel W. McFatter · Tucson, US

Key dates

Filing date	Nov 6, 2008
Grant date	Oct 16, 2012
Priority date	—
Expiry date	Feb 18, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2007/1866
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method for calibrating a synthetic jet ejector is provided. The method includes (a) taking a first measurement DCR0 of the DC resistance of the coil; (b) adjusting the actuator drive voltage Vd to achieve a desired maximum displacement dmax1 at a frequency f1; (c) measuring the input current Iin and input voltage Vin; (d) calculating the back electromagnetic frequency BEMF, wherein BEMF=Vin−Iin*DCR; and (e) storing the calculated value of BEMF in a memory device associated with the synthetic jet actuator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.